Conceptual design framework: Environment and Natural Resources (ENR) directory. Integrated Enviromental Management for Sustainable Development.
Chicago Style (17. basım) AtıfConceptual Design Framework: Environment and Natural Resources (ENR) Directory. Diliman, Quezon City: Integrated Enviromental Management for Sustainable Development.
MLA (9th ed.) AtıfConceptual Design Framework: Environment and Natural Resources (ENR) Directory. Integrated Enviromental Management for Sustainable Development.
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